Substitute for gutta-percha.



UNITED STATES PATENT OFFICE.

HUGo SCHNEIDER, OF STRASBURG, GERMANY.

SUBSTITUTE FOR GUT'I 'A-PERCHA.

SPECIFICATION forming part of Letters Patent No. 651,582, dated June 12, 1900.

Application filed November 21, 1899.

To all whom it may concern:

Be it known that I, HUGO SCHNEIDER, engineer, a subject of the German Emperor, residing at No. 7 Steinring, Strasburg, Alsace, Germany, have invented certain new and useful Improvements in Substitutes for Gotta- Percha for Coating Cables and for other Purposes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In order to manufacture my improved substitute for gutta-percha, I employ a mixture of about forty-five per cent. of asphalt-tar, (pissasphaltum,) forty per cent. of resin, ten per cent. of spirits of turpentine, and five per cent. of linseed-oil. After having brought the asphalt-tar to boiling-point the resin is added, and when an intimate mixture of the two substances has been obtained the spirits of tur- Serial no. 737,812. (No specimens.)

pentine is added first and then the linseedoil, after which the entire mixture is well boiled.

Having thus particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare that what I claim is= As a substitute for gutt-a-percha, a composit-ion of matter, prepared substantially as described from forty-five per cent. of asphalttar, forty per cent. of resin, ten per cent. of spirits of turpentine, and five per cent. of linseed-oil, as specified.

I In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

HUGO SCHNEIDER.

Witnesses:

R. HOELGER, MAX ADLER. 

